Finding the Fourth Proportional to 1,279,097.84, 1,919,037.72 and 767,330.12
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Solution
The fourth proportional to 1,279,097.84, 1,919,037.72 and 767,330.12 is: 1,151,229.72
Step by Step Solution
- Step 1: Write the proportion equation
1,279,097.84 : 1,919,037.72 = 767,330.12 : x - Step 2: Convert to fraction form
1,279,097.84/1,919,037.72 = 767,330.12/x - Step 3: Cross multiply
1,279,097.84x = 1,919,037.72 × 767,330.12 - Step 4: Simplify right side
1,279,097.84x = 1,472,535,443,972.13 - Step 5: Solve for x
x = 1,472,535,443,972.13/1,279,097.84 - Step 6: Final answer
x = 1,151,229.72
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.